Home / 165,531.60-248,815.80-162,421.20

Finding the Fourth Proportional to 165,531.60, 248,815.80 and 162,421.20

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Solution

The fourth proportional to 165,531.60, 248,815.80 and 162,421.20 is: 244,140.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,531.60 : 248,815.80 = 162,421.20 : x
  2. Step 2: Convert to fraction form
    165,531.60/248,815.80 = 162,421.20/x
  3. Step 3: Cross multiply
    165,531.60x = 248,815.80 × 162,421.20
  4. Step 4: Simplify right side
    165,531.60x = 40,412,960,814.96
  5. Step 5: Solve for x
    x = 40,412,960,814.96/165,531.60
  6. Step 6: Final answer
    x = 244,140.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.